EP 0618717 A2 19941005 - Apparatus for distinguishing image portions through image expansion.
Title (en)
Apparatus for distinguishing image portions through image expansion.
Title (de)
Vorrichtung zum Unterscheiden von Bildteilen mittels Bildexpansion.
Title (fr)
Appareil pour distinguer des parties d'images par expansion d'images.
Publication
Application
Priority
JP 7484393 A 19930331
Abstract (en)
An image processing apparatus for performing predetermined processing on an image of a document having an image portion and a background portion other than the image portion, has a function (101) for reading the image of the document so as to convert the image to an image signal composed of black and white pixels, a function (104, 105) for forming an expansion image by converting a white pixel array to a black pixel portion when the white pixel array corresponding to a predetermined number of pixels is continuous adjacent to the black pixel portion of the image signal received from the reading function, and a function (106, 107, 108) for recognizing that portion corresponding to the white pixel portion in the document image containing the expansion image formed by the expansion image forming function, as the background portion of the document. <IMAGE>
IPC 1-7
IPC 8 full level
G06K 9/20 (2006.01); G06T 5/00 (2006.01); G06T 7/40 (2006.01); H04N 1/40 (2006.01)
CPC (source: EP US)
H04N 1/40062 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0618717 A2 19941005; EP 0618717 A3 19950405; EP 0618717 B1 19981104; DE 69414294 D1 19981210; DE 69414294 T2 19990617; JP 3083673 B2 20000904; JP H06290300 A 19941018; US 5583646 A 19961210
DOCDB simple family (application)
EP 94105041 A 19940330; DE 69414294 T 19940330; JP 7484393 A 19930331; US 57025495 A 19951211